every brand or model has potential bad units.

10 years ago, i bought an onkyo, trouble free, still working.

2 years ago, i bought the onkyo sr252, arrived unable to power up, had to return to seller...

replaced with denon x520bt, all good since.

the current X250BT is an upgrade of the 520bt, i believe.

which is why i suggested it to you when u first asked yr question in another thread.

the denon and onkyo are similar in terms of features and capabilities, both support 4k hdr but not atmos/dtsx.

just make sure it comes with current firmware as some sellers have old stock with old firmware.

if u do not have atmos setup or not playing atmos/dtsx much, dtshdma and ddtruehd are very fine for yr 5.1, which both the onkyo and denon can handle.

will be good enough for most purposes, incl 4kHDR bluray videos. they both also have PLII, dts:neo THX, etc.

netflix, u get dd/dd+5.1 depending on device.

firmware upgrading - i can't comment much as i have never done so, never had to. i suppose u need to know where to get the right one.

pioneer... never checked that one, never used this brand, can't comment.

This post has been edited by AVFAN: May 2 2019, 04:19 PM